问题
选择题
Shirley ______ a book about Tibet last year, but I don’t know whether she has finished it.
A．has written
B．wrote
C．had written
D．was writing
答案
答案：D
根据时间状语last year，可知要用过去时态，but I don’t know whether she has finished it.但是我不知道她是否写完了，可知是去年正在写，而不是写了一本书。所以选D。